The road ring, located about 2 kilometers south of Taipa, is connected by a road that is reclaimed by the reclamation. To the west of the island is the Da Hengqin Island in Zhuhai City, which is less than 300 meters away from the narrowest point. The hills of the island are undulating, the terrain is the highest in Australia, the land is rare, and the development is relatively slow. In the past, fishery was the mainstay. In some years, some shipyards have built power plants and cement plants, deep water ports on the northeast coast, and reclaimed land in the northwest to prepare for industrial development. The two excellent beaches in Black Sand and Zhuwan are located on the southeast and south coast of the island. With the development of Australia, the development of Coloane Island is gradually accelerating. The road ring is called Salt Bay, Yanzao Bay, Jiu'ao Island or Apo's End. It is named after the Jiu'ao Bay in the northeast corner and the Jiu'ao Mountain on the island. In addition, the Portuguese language of the road ring is Coloane, transliterated from the island's Cantonese name "crossing the bay". The road ring was originally an independent island and is now integrated with Taipa and Cotai.